Which of the following is a type of figurative language? alliteration classification pronoun cause and effect

Alliteration!
Let me define each term:
Classification: the action of sorting something based on shared qualities. 
Pronoun: A noun, only naming something important, like New York. 
Cause and Effect: The cause of something and it's reaction. She threw the ball, and it hit the wall. 

A: become a alien but sound like a human